iMap4 is a Matlab Toolbox for the spatial mapping of eye movement data (e.g., fixations) using Linear Mixed Model and non-parametric statistics.
Github Repository
Citing iMap4
Lao, J., Miellet, S., Pernet, C., Sokhn, N., & Caldara, R. (2016). iMap4: An Open Source Toolbox for the Statistical Fixation Mapping of Eye Movement data with Linear Mixed Modeling. Behavior Research Methods. doi: 10.3758/s13428-016-0737-x